Brief Description: Turned the assembly over and riveted the assigned
05/07/2009 … 21-7, Step 1 to 4 ….. Turned the assembly over and riveted the assigned areas and the Counter Balance as shown in Figure 1 then flipped the Aileron over and riveted (set) all the A-1004-L and A-1—1A Nose Skin rivets and tall the A-10015-R Inboard Nose Ribs and set all the A-1005 Main Rib to A-1001B Top Skin as shown in Figure 2. Now again turned the Aileron over and set the remaining A-1015-R Inboard Nose Ribs to A-1010A-L Nose Skin and the remaining A-1005-L Main Rib to A-1002 Bottom Skin. Then I repeated this process for the Right Aileron as shown in Figure 3. Time about 2 hours for both ailerons.
